This page summarizes some useful information about digital circuit analysis with hspice. It has the advantage of being freely available, to support a wide variety of models, and to run on all unix platforms. The explanation assumes that the reader knows how to. Once generate netlist file, you can simulate by using hspice. Behavioral voltage source see voltage and current controlled elements in the hspice simulation and analysis user guide. The td10n parameter counts the crossings after 10 ns has elapsed. Hspice measures the delay from the second rising edge of the voltage at node 1 to the second falling edge of node 2.
When i simulated the pll, designed in hspice, in simulink, i copied the parameters such as lpf transfer function, vco input sensitivity, vco quiscent frequency of the hspice circuits onto the. Hspice simulation and analysis user guide version y2006. The measurement begins when the second rising voltage at node 1 is 2. However, you will need to explicitly command hspice to generate the extra. Because delay is a starhspice keyword, it should not be used as a node name. Hspice simulation and analysis user guide version x2005. Hspice also has specific file naming conventions to indicate the function of each file. The synopsys hspice special interest group sig is an active community for all hspice users and design engineers who want to stay connected with the latest developments in the field of circuit simulation. Hi everyone please help me with the delay measurement in hspice through graph as well as writing.
Other versions of hspice should not differ too much. Hspice stimulus types there are two types of stimulus that we widely use in this class 1. The t element is used for ideal transmission lines and the u. For descriptions of the other manuals in the hspice documentation set, see the next section, the hspice documentation set. Hspice signal integrity user guide university of rochester. Inside this manual this manual contains the chapters described below. This element facilitates the adjustment of propagation delay in the macromodelling process. Save this file, and its your final hspice license file. This element facilitates the adjustment of propagation delay in the macromodel process. Existing spice decks created for spice3 can be easily modified to run under hspice, or can be rewritten to take advantage of features. The syntax for parameters is different from hspice. Hspice stimulus types university of southern california. The delay element is the same as voltage controlled current source except it is associated by a propagation delay td.
Sparameter modeling and simulation for signal integrity analysis session 2mp2 by amir h. This hspice waveform viewer presented here can be useful for engineers running hspice simulations routinely. This tutorial will introduce you to the cadence environment. Port element pi allows adding pj and rj in form of distribution. Hspice basics an input netlist file must be created to begin the design entry and simulation process. Downloadable tools university of california, berkeley.
Hspice tutorial ac simulation we will construct and analyze a nmos commonsource amplifier as the example for ac analysis. The popularity of the spice circuit simulator has translated into various offerings, suited for different compute platforms. For detailed information, pleas look at the page 311 of hspice user guide. Electronic circuit optimization this project is dedicated to the optimization of any electrical and electronic circuits and compon. Simulation with hspice university of texas at dallas. It will also show you how to use the simulator hspice in standalone mode to make certain parts of your design exploration easier ece 546students.
Ideal opamp see ideal opamp in the hspice simulation and analysis user guide. Getting started with hspice oregon state university. Awaves is a program that allows you to graphically plot the results of the hspice analysis. To ensure that hspice generates a data file for avanwaves or cscope add. The extra effects which are introduced by transmission line models are.
Hspice transmission line elements there are two transmission line elements. Node and element identification either names or numbers e. Element variation monte carlo or element parameter sweeps voltage variation vcc, vdd, or substrate supply variation. In order to use hspice from home in windowsmaclinux, you will need to use ssh. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and. The delay element is the same as voltage controlled voltage source, except it is associated by a propagation delay td. The piecewise linear mode the following figure, shows the graph generated in response to the pwl piecewise linear input stimulus applied between in and gnd. A brief introduction on hspice sharif university of. In this work, a new delay element is proposed in which the relationship between the input analog voltage and the delay between its input pulse and output pulse is highly linear within an analog. In this tutorial, we will again use the hspice on engineering workstation linux computers. Just add a resistor between the node and ground, or use the. F elements current controlled current sourcescccs linear exxx voltagecontrolled element name. No dc path to ground op and dc this often happens with floating mosfet gates.
If you installed cst, you will have to avoid using 27000 port, because its occupied, try replacing 27000 with 27002 in your hspice license file. Hspice tutorial university of california, san diego. A capacitor of 20ff from node out to node 0 is given on the next line. Every node and element within the hspice netlist must have its own unique name. Is there anyway to translate it over to work in ltspice or another free spice program. Because delay is a star hspice keyword, it should not be used as a node name. For descriptions of the other manuals in the hspice documentation set, see the next section, the hspice. Hspice tutorial university of california, berkeley. I actually have the doubt that if we are taking two inputs a and b suppose in exor gate and an output y then how would the command be given. Delay element see voltagecontrolled voltage source vcvs in the. Outline declaration voltage source circuit statement subckt of circuit statement measure simulation advanced reliable systems lab.
Chapter 5 using sources and stimuli this chapter describes element and model statements for independent sources. If you need to use both cadence tools and synopsys tools, use them in different terminals tabs, e. Tips for using hspice university of california, berkeley. With over 25 years of successful design tapeouts, hspice is the industrys most trusted and comprehensive circuit simulator. Assorted magnetic elements are supported by hspice but they are not included. Hspice applications manual university of rochester. This tutorial is designed to introduce you to the tools we will use in class. Using sources and stimuli starhspice independent source functions starhspice manual, release 1998. Chapter 5 using sources and stimuli class home pages. The starhspice optimizing analog circuit simulator is a industrialgrade circuit analysis product for the simulation of electrical circuits in steadystate, transient, and frequency domains. Hspice from synopsys can be used to simulate the circuits from the cmos books. Resistors, inductors, and capacitors come in two types. Sparameter modeling and simulation for signal integrity.
See e element parameters in the hspice simulation and analysis user guide. It is a powerful program that is used in ic and boardlevel design to check the integrity of circuit designs and to predict circuit behavior. Download pspice for free and get all the cadence pspice models. The second measurement measures propagation delay from the node in to the node out. Delay element see voltagecontrolled voltage source vcvs in the hspice simulation and analysis user guide. The main difference is that propagation delay is measured from one node to another, but rise and fall times are specific parameters of a single node. Ac statement ac sweep and signal analysis 96 starhspice manual, release 1998. Hspice tutorial prepared by dongwan ha oct 21, 2008 1 introduction spice is a general purpose analog electronic circuit simulator. It can display the transient or ac simulation results stored in binary or text files easily and generate publication quality plots. Hspice is the industrys gold standard for accurate circuit simulation and offers foundrycertified mos device models with stateoftheart simulation and analysis algorithms. Hspice is an analog circuit simulator similar to berkeleys spice3 capable of performing transient, steady state, and frequency domain analyses. On february 2, 2017, synopsys hosted an hspcie sig event in santa clara, ca. Sometimes observing the group delay will also give valuable.
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